Dominos now sells a gluten-free pizza crust. It is currently only available in the small size and is a thin (VERY thin) crust. It tastes awesome! Absolutely the best gluten-free pizza I have tried. I do mine with no cheese and lots of toppings. I’ve had a couple people without allergies try it and even they say it’s good!
Ingredients: Water, Rice Flour, Rice Starch, Potato Starch, Olive Oil, Evaporated Can Juice, Tapioca Flour, Potato Flour, Fresh Yeast, Avicel, Salt, Calcium Propionate (Preservative).
As far as toppings go, I either do a meat & veggie or a Hawaiian pizza. For the Hawaiian, I do ham, bacon, diced tomatoes, and pineapple. For the meat & veggie, I do pepperoni, sausage, spinach, red & green peppers, mushrooms, and diced tomatoes, and sometimes bacon. Having more toppings makes the pizza a lot better since there’s no gluten or cheese.

They also have an allergen list for toppings on their website. Unfortunately they do not sell the crust separately, so you can’t buy it and make your own. I’ll have to reverse-engineer the recipe at some point since it seems pretty easy to make - mostly rice & potato ingredients, although it will be interesting to see how that avicel ingredient affects the crust quality.

However, it comes with a catch: it’s not safe for people who are extremely sensitive to gluten, such as people with Celiac’s disease. The Dominos kitchen is not gluten-free and the pizzas are made on shared equipment (ovens, cutting tools, etc.). Fortunately I don’t seem to be that sensitive, but be aware that they are practicing some bad advertising here - yes, technically it is gluten-free, but not really gluten-free because it comes in contact with gluten multiple times during the cooking process.
The other difficulty is customer perception - if you have a gluten intolerance or gluten allergy and see something labeled “gluten-free”, you can generally (read: always) assume that it is safe to eat. I think that Dominos is mostly jumping on the “healthy/green/gluten-free/Whole Foods” advertising bandwagon, rather than catering to people with food allergies, and kind of screwed up because they didn’t advertise this product as well as they could have. I’ve seen a lot of criticism over their decision to advertise a gluten-free product that is made in a high-gluten environment. But, it’s better than nothing! And if you have an allergy, you always need to do your homework anyway. So if you’re not extremely sensitive to gluten, give this a shot!